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<h1 class="title">stickman.cpp 示例文件</h1>
<span class="subtitle">animation/stickman/stickman.cpp</span>
<!-- $$$animation/stickman/stickman.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtCore module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** &quot;Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/</span>

  <span class="preprocessor">#include &quot;stickman.h&quot;</span>
  <span class="preprocessor">#include &quot;node.h&quot;</span>

  <span class="preprocessor">#include &lt;QPainter&gt;</span>
  <span class="preprocessor">#include &lt;QTimer&gt;</span>
  <span class="preprocessor">#include &lt;qmath.h&gt;</span>

  <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> Coords<span class="operator">[</span>NodeCount <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span> <span class="operator">=</span> {
      <span class="number">0.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">150.0</span><span class="operator">,</span> <span class="comment">// head, #0</span>

      <span class="number">0.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">100.0</span><span class="operator">,</span> <span class="comment">// body pentagon, top-&gt;bottom, left-&gt;right, #1 - 5</span>
      <span class="operator">-</span><span class="number">50.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">50.0</span><span class="operator">,</span>
      <span class="number">50.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">50.0</span><span class="operator">,</span>
      <span class="operator">-</span><span class="number">25.0</span><span class="operator">,</span> <span class="number">50.0</span><span class="operator">,</span>
      <span class="number">25.0</span><span class="operator">,</span> <span class="number">50.0</span><span class="operator">,</span>

      <span class="operator">-</span><span class="number">100.0</span><span class="operator">,</span> <span class="number">0.0</span><span class="operator">,</span> <span class="comment">// right arm, #6 - 7</span>
      <span class="operator">-</span><span class="number">125.0</span><span class="operator">,</span> <span class="number">50.0</span><span class="operator">,</span>

      <span class="number">100.0</span><span class="operator">,</span> <span class="number">0.0</span><span class="operator">,</span> <span class="comment">// left arm, #8 - 9</span>
      <span class="number">125.0</span><span class="operator">,</span> <span class="number">50.0</span><span class="operator">,</span>

      <span class="operator">-</span><span class="number">35.0</span><span class="operator">,</span> <span class="number">75.0</span><span class="operator">,</span> <span class="comment">// lower body, #10 - 11</span>
      <span class="number">35.0</span><span class="operator">,</span> <span class="number">75.0</span><span class="operator">,</span>

      <span class="operator">-</span><span class="number">25.0</span><span class="operator">,</span> <span class="number">200.0</span><span class="operator">,</span> <span class="comment">// right leg, #12 - 13</span>
      <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="number">300.0</span><span class="operator">,</span>

      <span class="number">25.0</span><span class="operator">,</span> <span class="number">200.0</span><span class="operator">,</span> <span class="comment">// left leg, #14 - 15</span>
      <span class="number">30.0</span><span class="operator">,</span> <span class="number">300.0</span>

  };

  <span class="keyword">static</span> <span class="keyword">const</span> <span class="type">int</span> Bones<span class="operator">[</span>BoneCount <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span> <span class="operator">=</span> {
      <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="comment">// neck</span>

      <span class="number">1</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="comment">// body</span>
      <span class="number">1</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span>
      <span class="number">1</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span>
      <span class="number">1</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span>
      <span class="number">2</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span>
      <span class="number">2</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span>
      <span class="number">2</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span>
      <span class="number">3</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span>
      <span class="number">3</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span>
      <span class="number">4</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span>

      <span class="number">2</span><span class="operator">,</span> <span class="number">6</span><span class="operator">,</span> <span class="comment">// right arm</span>
      <span class="number">6</span><span class="operator">,</span> <span class="number">7</span><span class="operator">,</span>

      <span class="number">3</span><span class="operator">,</span> <span class="number">8</span><span class="operator">,</span> <span class="comment">// left arm</span>
      <span class="number">8</span><span class="operator">,</span> <span class="number">9</span><span class="operator">,</span>

      <span class="number">4</span><span class="operator">,</span> <span class="number">10</span><span class="operator">,</span> <span class="comment">// lower body</span>
      <span class="number">4</span><span class="operator">,</span> <span class="number">11</span><span class="operator">,</span>
      <span class="number">5</span><span class="operator">,</span> <span class="number">10</span><span class="operator">,</span>
      <span class="number">5</span><span class="operator">,</span> <span class="number">11</span><span class="operator">,</span>
      <span class="number">10</span><span class="operator">,</span> <span class="number">11</span><span class="operator">,</span>

      <span class="number">10</span><span class="operator">,</span> <span class="number">12</span><span class="operator">,</span> <span class="comment">// right leg</span>
      <span class="number">12</span><span class="operator">,</span> <span class="number">13</span><span class="operator">,</span>

      <span class="number">11</span><span class="operator">,</span> <span class="number">14</span><span class="operator">,</span> <span class="comment">// left leg</span>
      <span class="number">14</span><span class="operator">,</span> <span class="number">15</span>

  };

  StickMan<span class="operator">::</span>StickMan()
  {
      m_sticks <span class="operator">=</span> <span class="keyword">true</span>;
      m_isDead <span class="operator">=</span> <span class="keyword">false</span>;
      m_pixmap <span class="operator">=</span> <span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">&quot;images/head.png&quot;</span>);
      m_penColor <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white;
      m_fillColor <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black;

      <span class="comment">// Set up start position of limbs</span>
      <span class="keyword">for</span> (<span class="type">int</span> i<span class="operator">=</span><span class="number">0</span>; i<span class="operator">&lt;</span>NodeCount; <span class="operator">+</span><span class="operator">+</span>i) {
          m_nodes<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <span class="keyword">new</span> Node(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(Coords<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span><span class="operator">,</span> Coords<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span> <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span>)<span class="operator">,</span> <span class="keyword">this</span>);
          connect(m_nodes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">,</span> SIGNAL(positionChanged())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(childPositionChanged()));
      }

      <span class="keyword">for</span> (<span class="type">int</span> i<span class="operator">=</span><span class="number">0</span>; i<span class="operator">&lt;</span>BoneCount; <span class="operator">+</span><span class="operator">+</span>i) {
          <span class="type">int</span> n1 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span>;
          <span class="type">int</span> n2 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span> <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span>;

          Node <span class="operator">*</span>node1 <span class="operator">=</span> m_nodes<span class="operator">[</span>n1<span class="operator">]</span>;
          Node <span class="operator">*</span>node2 <span class="operator">=</span> m_nodes<span class="operator">[</span>n2<span class="operator">]</span>;

          <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> dist <span class="operator">=</span> node1<span class="operator">-</span><span class="operator">&gt;</span>pos() <span class="operator">-</span> node2<span class="operator">-</span><span class="operator">&gt;</span>pos();
          m_perfectBoneLengths<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> sqrt(pow(dist<span class="operator">.</span>x()<span class="operator">,</span><span class="number">2</span>) <span class="operator">+</span> pow(dist<span class="operator">.</span>y()<span class="operator">,</span><span class="number">2</span>));
      }

      startTimer(<span class="number">10</span>);
  }

  StickMan<span class="operator">::</span><span class="operator">~</span>StickMan()
  {
  }

  <span class="type">void</span> StickMan<span class="operator">::</span>childPositionChanged()
  {
      prepareGeometryChange();
  }

  <span class="type">void</span> StickMan<span class="operator">::</span>setDrawSticks(bool on)
  {
      m_sticks <span class="operator">=</span> on;
      <span class="keyword">for</span> (<span class="type">int</span> i<span class="operator">=</span><span class="number">0</span>;i<span class="operator">&lt;</span>nodeCount();<span class="operator">+</span><span class="operator">+</span>i) {
          Node <span class="operator">*</span>node <span class="operator">=</span> m_nodes<span class="operator">[</span>i<span class="operator">]</span>;
          node<span class="operator">-</span><span class="operator">&gt;</span>setVisible(on);
      }
  }

  <span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span> StickMan<span class="operator">::</span>boundingRect() <span class="keyword">const</span>
  {
      <span class="comment">// account for head radius=50.0 plus pen which is 5.0</span>
      <span class="keyword">return</span> childrenBoundingRect()<span class="operator">.</span>adjusted(<span class="operator">-</span><span class="number">55.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">55.0</span><span class="operator">,</span> <span class="number">55.0</span><span class="operator">,</span> <span class="number">55.0</span>);
  }

  <span class="type">int</span> StickMan<span class="operator">::</span>nodeCount() <span class="keyword">const</span>
  {
      <span class="keyword">return</span> NodeCount;
  }

  Node <span class="operator">*</span>StickMan<span class="operator">::</span>node(<span class="type">int</span> idx) <span class="keyword">const</span>
  {
      <span class="keyword">if</span> (idx <span class="operator">&gt;</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">&amp;</span><span class="operator">&amp;</span> idx <span class="operator">&lt;</span> NodeCount)
          <span class="keyword">return</span> m_nodes<span class="operator">[</span>idx<span class="operator">]</span>;
      <span class="keyword">else</span>
          <span class="keyword">return</span> <span class="number">0</span>;
  }

  <span class="type">void</span> StickMan<span class="operator">::</span>timerEvent(<span class="type"><a href="../qtcore/qtimerevent.html">QTimerEvent</a></span> <span class="operator">*</span>)
  {
      update();
  }

  <span class="type">void</span> StickMan<span class="operator">::</span>stabilize()
  {
      <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> threshold <span class="operator">=</span> <span class="number">0.001</span>;

      <span class="keyword">for</span> (<span class="type">int</span> i<span class="operator">=</span><span class="number">0</span>; i<span class="operator">&lt;</span>BoneCount; <span class="operator">+</span><span class="operator">+</span>i) {
          <span class="type">int</span> n1 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span>;
          <span class="type">int</span> n2 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span> <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span>;

          Node <span class="operator">*</span>node1 <span class="operator">=</span> m_nodes<span class="operator">[</span>n1<span class="operator">]</span>;
          Node <span class="operator">*</span>node2 <span class="operator">=</span> m_nodes<span class="operator">[</span>n2<span class="operator">]</span>;

          <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> pos1 <span class="operator">=</span> node1<span class="operator">-</span><span class="operator">&gt;</span>pos();
          <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> pos2 <span class="operator">=</span> node2<span class="operator">-</span><span class="operator">&gt;</span>pos();

          <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> dist <span class="operator">=</span> pos1 <span class="operator">-</span> pos2;
          <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> length <span class="operator">=</span> sqrt(pow(dist<span class="operator">.</span>x()<span class="operator">,</span><span class="number">2</span>) <span class="operator">+</span> pow(dist<span class="operator">.</span>y()<span class="operator">,</span><span class="number">2</span>));
          <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> diff <span class="operator">=</span> (length <span class="operator">-</span> m_perfectBoneLengths<span class="operator">[</span>i<span class="operator">]</span>) <span class="operator">/</span> length;

          <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> p <span class="operator">=</span> dist <span class="operator">*</span> (<span class="number">0.5</span> <span class="operator">*</span> diff);
          <span class="keyword">if</span> (p<span class="operator">.</span>x() <span class="operator">&gt;</span> threshold <span class="operator">&amp;</span><span class="operator">&amp;</span> p<span class="operator">.</span>y() <span class="operator">&gt;</span> threshold) {
              pos1 <span class="operator">-</span><span class="operator">=</span> p;
              pos2 <span class="operator">+</span><span class="operator">=</span> p;

              node1<span class="operator">-</span><span class="operator">&gt;</span>setPos(pos1);
              node2<span class="operator">-</span><span class="operator">&gt;</span>setPos(pos2);
          }
      }
  }

  <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> StickMan<span class="operator">::</span>posFor(<span class="type">int</span> idx) <span class="keyword">const</span>
  {
      <span class="keyword">return</span> m_nodes<span class="operator">[</span>idx<span class="operator">]</span><span class="operator">-</span><span class="operator">&gt;</span>pos();
  }

  <span class="comment">//#include &lt;QTime&gt;</span>
  <span class="type">void</span> StickMan<span class="operator">::</span>paint(<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> <span class="operator">*</span>painter<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstyleoptiongraphicsitem.html">QStyleOptionGraphicsItem</a></span> <span class="operator">*</span><span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>)
  {
    <span class="comment">/*  static int frames = 0;
      static QTime time;
      if (frames++ % 100 == 0) {
          frames = 1;
          time.restart();
      }

      if (time.elapsed() &gt; 0) {
          painter-&gt;setPen(Qt::white);
          painter-&gt;drawText(0, 0, QString::number(frames / (time.elapsed() / 1000.0)));
      }*/</span>

      stabilize();
      <span class="keyword">if</span> (m_sticks) {
          painter<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white);
          <span class="keyword">for</span> (<span class="type">int</span> i<span class="operator">=</span><span class="number">0</span>; i<span class="operator">&lt;</span>BoneCount; <span class="operator">+</span><span class="operator">+</span>i) {
              <span class="type">int</span> n1 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span><span class="operator">]</span>;
              <span class="type">int</span> n2 <span class="operator">=</span> Bones<span class="operator">[</span>i <span class="operator">*</span> <span class="number">2</span> <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span>;

              Node <span class="operator">*</span>node1 <span class="operator">=</span> m_nodes<span class="operator">[</span>n1<span class="operator">]</span>;
              Node <span class="operator">*</span>node2 <span class="operator">=</span> m_nodes<span class="operator">[</span>n2<span class="operator">]</span>;

              painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(node1<span class="operator">-</span><span class="operator">&gt;</span>pos()<span class="operator">,</span> node2<span class="operator">-</span><span class="operator">&gt;</span>pos());
          }
      } <span class="keyword">else</span> {
          <span class="comment">// first bone is neck and will be used for head</span>

          <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> path;
          path<span class="operator">.</span>moveTo(posFor(<span class="number">0</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">1</span>));

          <span class="comment">// right arm</span>
          path<span class="operator">.</span>lineTo(posFor(<span class="number">2</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">6</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">7</span>));

          <span class="comment">// left arm</span>
          path<span class="operator">.</span>moveTo(posFor(<span class="number">3</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">8</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">9</span>));

          <span class="comment">// body</span>
          path<span class="operator">.</span>moveTo(posFor(<span class="number">2</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">4</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">10</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">11</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">5</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">3</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">1</span>));

          <span class="comment">// right leg</span>
          path<span class="operator">.</span>moveTo(posFor(<span class="number">10</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">12</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">13</span>));

          <span class="comment">// left leg</span>
          path<span class="operator">.</span>moveTo(posFor(<span class="number">11</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">14</span>));
          path<span class="operator">.</span>lineTo(posFor(<span class="number">15</span>));

          painter<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="../qtgui/qpen.html">QPen</a></span>(m_penColor<span class="operator">,</span> <span class="number">5.0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SolidLine<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>RoundCap));
          painter<span class="operator">-</span><span class="operator">&gt;</span>drawPath(path);

          {
              <span class="type">int</span> n1 <span class="operator">=</span> Bones<span class="operator">[</span><span class="number">0</span><span class="operator">]</span>;
              <span class="type">int</span> n2 <span class="operator">=</span> Bones<span class="operator">[</span><span class="number">1</span><span class="operator">]</span>;
              Node <span class="operator">*</span>node1 <span class="operator">=</span> m_nodes<span class="operator">[</span>n1<span class="operator">]</span>;
              Node <span class="operator">*</span>node2 <span class="operator">=</span> m_nodes<span class="operator">[</span>n2<span class="operator">]</span>;

              <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> dist <span class="operator">=</span> node2<span class="operator">-</span><span class="operator">&gt;</span>pos() <span class="operator">-</span> node1<span class="operator">-</span><span class="operator">&gt;</span>pos();

              <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> sinAngle <span class="operator">=</span> dist<span class="operator">.</span>x() <span class="operator">/</span> sqrt(pow(dist<span class="operator">.</span>x()<span class="operator">,</span> <span class="number">2</span>) <span class="operator">+</span> pow(dist<span class="operator">.</span>y()<span class="operator">,</span> <span class="number">2</span>));
              <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> angle <span class="operator">=</span> <a href="../qtcore/qtmath.html#qRadiansToDegrees-1">qRadiansToDegrees</a>(asin(sinAngle));

              <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> headPos <span class="operator">=</span> node1<span class="operator">-</span><span class="operator">&gt;</span>pos();
              painter<span class="operator">-</span><span class="operator">&gt;</span>translate(headPos);
              painter<span class="operator">-</span><span class="operator">&gt;</span>rotate(<span class="operator">-</span>angle);

              painter<span class="operator">-</span><span class="operator">&gt;</span>setBrush(m_fillColor);
              painter<span class="operator">-</span><span class="operator">&gt;</span>drawEllipse(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(<span class="number">0</span><span class="operator">,</span><span class="number">0</span>)<span class="operator">,</span> <span class="number">50.0</span><span class="operator">,</span> <span class="number">50.0</span>);

              painter<span class="operator">-</span><span class="operator">&gt;</span>setBrush(m_penColor);
              painter<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="../qtgui/qpen.html">QPen</a></span>(m_penColor<span class="operator">,</span> <span class="number">2.5</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SolidLine<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>RoundCap));

              <span class="comment">// eyes</span>
              <span class="keyword">if</span> (m_isDead) {
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(<span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>);
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(<span class="operator">-</span><span class="number">20.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>);

                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(<span class="number">20.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>);
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(<span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="number">20.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>);
              } <span class="keyword">else</span> {
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawChord(<span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span>(<span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="number">25.0</span><span class="operator">,</span> <span class="number">70.0</span>)<span class="operator">,</span> <span class="number">30.0</span><span class="operator">*</span><span class="number">16</span><span class="operator">,</span> <span class="number">120.0</span><span class="operator">*</span><span class="number">16</span>);
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawChord(<span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span>(<span class="number">5.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">30.0</span><span class="operator">,</span> <span class="number">25.0</span><span class="operator">,</span> <span class="number">70.0</span>)<span class="operator">,</span> <span class="number">30.0</span><span class="operator">*</span><span class="number">16</span><span class="operator">,</span> <span class="number">120.0</span><span class="operator">*</span><span class="number">16</span>);
              }

              <span class="comment">// mouth</span>
              <span class="keyword">if</span> (m_isDead) {
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawLine(<span class="operator">-</span><span class="number">28.0</span><span class="operator">,</span> <span class="number">2.0</span><span class="operator">,</span> <span class="number">29.0</span><span class="operator">,</span> <span class="number">2.0</span>);
              } <span class="keyword">else</span> {
                  painter<span class="operator">-</span><span class="operator">&gt;</span>setBrush(<span class="type"><a href="../qtgui/qcolor.html">QColor</a></span>(<span class="number">128</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">64</span> ));
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawChord(<span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span>(<span class="operator">-</span><span class="number">28.0</span><span class="operator">,</span> <span class="number">2.0</span><span class="operator">-</span><span class="number">55.0</span><span class="operator">/</span><span class="number">2.0</span><span class="operator">,</span> <span class="number">57.0</span><span class="operator">,</span> <span class="number">55.0</span>)<span class="operator">,</span> <span class="number">0.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">180.0</span><span class="operator">*</span><span class="number">16</span>);
              }

              <span class="comment">// pupils</span>
              <span class="keyword">if</span> (<span class="operator">!</span>m_isDead) {
                  painter<span class="operator">-</span><span class="operator">&gt;</span>setPen(<span class="type"><a href="../qtgui/qpen.html">QPen</a></span>(m_fillColor<span class="operator">,</span> <span class="number">1.0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SolidLine<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>RoundCap));
                  painter<span class="operator">-</span><span class="operator">&gt;</span>setBrush(m_fillColor);
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawEllipse(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(<span class="operator">-</span><span class="number">12.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">25.0</span>)<span class="operator">,</span> <span class="number">5.0</span><span class="operator">,</span> <span class="number">5.0</span>);
                  painter<span class="operator">-</span><span class="operator">&gt;</span>drawEllipse(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(<span class="number">22.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">25.0</span>)<span class="operator">,</span> <span class="number">5.0</span><span class="operator">,</span> <span class="number">5.0</span>);
              }
          }
      }
  }

</pre>
</div>
<!-- @@@animation/stickman/stickman.cpp -->
        </div>
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   <p>
   <acronym title="Copyright">&copy;</acronym> 2019 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br/>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br/>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
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